ISOLATION TRANSFORMER MANUFACTURER
Supports various customizations to meet customer needs
Full range of certifications including lSO, CE, and UL
Possessing a highly skilled engineering team, rich experience, and technical strength
Strict quality control and competitive market prices
Capacity: Single Phase: 3 to 500kVA Three Phase: 5 to 3000kVA
Primary Voltage: 800v 690v660v600v480v440v415v380 240v or others
Secondary Voltage: 800v660v600v480v440v415v380v240v120v110v or others
Winding Material: Copper or aluminum
Frequency: 60Hz (50/60Hz Optional)
Connection Type: Dyn11/Yyn0 or others
Application: BESS, Data center, Industry, Renewable energy, EV charging, marine, oil and gas or others.
Minimum Order Quantity: ≥1 set
Packaging Details: International standard wooden crate or as per actual shipping requirements
Delivery Time: Generally 5-10 days, depending on order quantity.
Payment Methods: Wire Transfer (TT), Western Union, Letter of Credit (L/C).
GE Transformer designs and manufactures low-voltage distribution isolation transformers that deliver exceptional performance in safety, functionality, and long-term reliability. Our transformers are widely deployed in battery energy storage systems (BESS), data centers, commercial and industrial applications, renewable energy, and electric vehicle charging, providing efficient voltage conversion, electrical isolation, and enhanced power quality.
Each transformer features precision-wound copper or aluminum conductors, premium silicon steel laminations, and robust insulation systems, ensuring low losses, excellent voltage regulation, and quiet operation. GE Transformer products meet or exceed ISO, IEC, CE, and other standards, delivering efficient, enduring solutions for modern power systems.
Product series include:
General-purpose isolation transformers—Provide electrical isolation and voltage conversion for safe, reliable power distribution.
Drive isolation transformers—Protect variable frequency drives (VFDs) and connected equipment from transient and harmonic disturbances.
Autotransformers—Deliver compact, efficient voltage conversion where isolation is not required.
K-rated Transformers—Manage harmonic currents from nonlinear loads, minimizing overheating and maintaining system efficiency.
Harmonic Suppression Transformers—Eliminate harmonic distortion and improve power quality through advanced winding configurations and phase-shifting designs.
Encapsulated Transformers—Featuring epoxy-encapsulated windings for effective protection against dust, moisture, and corrosive contaminants.
| Capacity | Single Phase: 3 to 500kVA Three Phase: 5 to 3000kVA |
| Primary Voltage | 800v 690v660v600v480v440v415v380 240v or others |
| Secondary Voltage | 800v660v600v480v440v415v380v240v120v110v or others |
| Winding Material | Copper or aluminum |
| Frequency | 60Hz (50/60Hz Optional) |
| Connection Type | Dyn11/Yyn0 or others |
| Temperature Rise | ≤115° Other temperature rise options are customizable |
| Insulation | Class F or Class H |
| Cooling Method | ANAN, The number of fans can be customized |
| Efficiency (%) | ≥98% |
| Noise level (dB) | ≤45db |
| Voltage drop | <3% |
| Enclosure Type | Different IP up to IP-65；The color and material can be customized |
| Optional Accessories | Circuit breaker, AC contactor, Thermostat, Output leakage protection, Fuse, Inverter or others |
| Warranty | 12 Months |
| Certifications | ISO, CE, UL and other certificates |
Customization Options:
Voltages： Primary and secondary voltages are available upon request
Capacity: Single Phase: 3 to 500kVA, Three Phase: 5 to 1500kVA
Winding material options: copper or aluminum
Enclosure: The color and material are customizable, available in options such as 304 or 316L stainless steel
Enclosure protection rating: customizable, up to IP65
Frequency options: 50/60Hz
Insulation class: B, F, H (optional)
Optional Features:
Wheels can be added to the bottom of the transformer for easy movement
Circuit breaker can be installed
AC contactor can be installed
Temperature controller can be installed
Output leakage protection device can be installed
Fuse can be installed
Surge protection device
K-factor for rated current harmonic handling
Electrostatic shielding
1. How to Calculate Required Transformer Capacity
Formula: kVA = Load Power (kW) ÷ Power Factor (typically 0.8)
Example: 50kW equipment → 50 ÷ 0.8 = 62.5kVA (select 63kVA model)
2. What is a K-rated transformer?
A K-rated transformer is a dry-type transformer specifically designed for non-linear loads (such as variable frequency drives, LED lighting, IT equipment). It can withstand the additional heat and electromagnetic stress caused by harmonic currents, preventing overload damage due to harmonic losses that occur in conventional transformers.
3. What is a self-coupled transformer?
A self-coupled transformer is a single-winding transformer that achieves voltage conversion via taps on a common winding. Unlike dual-winding isolation transformers, it does not provide electrical isolation between primary and secondary circuits. Instead, it offers a compact, efficient solution for applications requiring step-up or step-down within the same system. GE Transformer’s autotransformers are used for motor starting, voltage conversion, and equipment designed for non-standard power supply voltages without requiring isolation.
4. What is a Drive Isolation Transformer?
A drive isolation transformer is a specialized isolation transformer designed for variable frequency drives (VFDs), servo drives, and motor control systems. It addresses issues like harmonic interference, voltage fluctuations, and ground loops to ensure stable operation of drive systems.
5. What is a Harmonic Suppression Transformer?
A harmonic suppression transformer is a specialized transformer designed for nonlinear loads such as variable frequency drives (VFDs), IT equipment, and LED lighting. Through optimized electromagnetic structure and shielding technology, it actively cancels or attenuates harmonic currents. This prevents traditional transformers from overheating and failing due to harmonics while protecting grid power quality.
6. What are your payment methods?
Payment methods: Telegraphic Transfer (TT), Western Union, Letter of Credit (L/C).
7. Can dry-type isolation transformers be installed outdoors?
Yes. When equipped with an IP54 or higher-rated protective enclosure, these transformers are suitable for outdoor or humid environments.
Why Do Global Data Center Operators Choose GE Transformer?
Reliability
Grid issues cause server downtime and data loss. GE dry-type transformers exceed industry standards, suppressing surges and harmonics for stable IT power.
Energy Efficiency
Ultra-low-loss design cuts heat and boosts efficiency, optimizes PUE, and supports green data centers and ESG targets.
Scalability
Modular design enables on-demand expansion, matching business growth while lowering upfront costs.
Compliance & Safety
Oil-free, fireproof and self-extinguishing, hazard-free, up to global standards, installable directly without extra fire systems.
How GE Transformers Add Value to Your PV & Energy Storage Systems
High Round-Trip Efficiency
Ultra-low losses cut energy waste in charge-discharge cycles, boosting usable energy, project IRR and economic returns.
Electrical Isolation
Blocks harmonics and interference, stabilizes voltage, protects PCS, BMS and key equipment, reducing downtime and maintenance.
Extreme Environment Adaptability
IP54/IP65 rugged design ensures reliable performance in harsh conditions, lowering maintenance needs.
Modular Design
Compact, low-noise (≤55dB) and space-saving, flexible for diverse ESS and enables rapid expansion. Full electrical isolation, 1.5× overload capacity, IP54/IP65 for reliable outdoor use.
GE Isolated Dry-Type Transformers – Value for EV Charging
Networks
High Efficiency & Low Losses
Reduces energy waste, lowers power costs and improves charging station ROI.
Built-in Harmonic Mitigation
K-factor winding keeps THDi below 5%, protecting equipment and avoiding penalties.
Ultra-Quiet Operation
Noise ≤55dB, suitable for parking, commercial and residential areas.
Superior Safety & Reliability
Full electrical isolation, 1.5× overload capacity, IP54/IP65 for reliable outdoor use.
Why Choose GE Transformer
Quality Control: Quality is a core value of GE Transformer. We conduct Factory Acceptance Testing (FAT), type testing, and third-party inspections to ensure superior quality. We strictly adhere to the ISO 9001 quality management system, committed to providing our customers with the highest quality products.
Professional Team: Our team comprises highly skilled professionals dedicated to responding quickly to customer needs. All GE Transformer team members receive systematic training and continuously improve their capabilities through rigorous quality standards and practices. Our commitment to customer service, product innovation, engineering excellence, and social and environmental responsibility makes us a trusted partner in the global power industry.
Certifications
- ISO9001：2015
- CE Certifications:
- UL Certifications:
- CSA Certification:
- CNAS Certification:
Competitive Market Pricing:Leveraging years of industry experience, GE Transformer integrates high-quality resources across R&D, production, procurement, transportation, and service, achieving effective cost control.
Fast Delivery: Strong production capacity, multiple freight partners, and a professional pre-sales and after-sales team, adhering to the “customer first” philosophy, provide customers with fast delivery and usage services.
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